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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/process_info.h"
#include <sys/sysctl.h>
#include <sys/time.h>
#include <unistd.h>
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/time.h"
namespace {
using base::Time;
// Returns the process creation time, or NULL if an error occurred.
Time* ProcessCreationTimeInternal() {
int mib[] = { CTL_KERN, KERN_PROC, KERN_PROC_PID, getpid() };
size_t len = 0;
if (sysctl(mib, arraysize(mib), NULL, &len, NULL, 0) < 0)
return NULL;
scoped_ptr_malloc<struct kinfo_proc>
proc(static_cast<struct kinfo_proc*>(malloc(len)));
if (sysctl(mib, arraysize(mib), proc.get(), &len, NULL, 0) < 0)
return NULL;
return new Time(Time::FromTimeVal(proc->kp_proc.p_un.__p_starttime));
}
} // namespace
namespace base {
//static
const Time* CurrentProcessInfo::CreationTime() {
static Time* process_creation_time = ProcessCreationTimeInternal();
return process_creation_time;
}
} // namespace base
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